interview-demo-code/scripts/ci/create-phar.php

<?php

$sourcePath = $argv[1] ?? null;
$pharFile = $argv[2] ?? null;

if (! $sourcePath) {
    throw new InvalidArgumentException('Source path must be provided');
}

if (! $pharFile) {
    throw new InvalidArgumentException('Phar file must be provided');
}

// Remove old file if exists
if (file_exists($pharFile)) {
    unlink($pharFile);
}

// Create new Phar archive
$phar = new Phar($pharFile);

// Start buffering
$phar->startBuffering();

// Add files from source directory

$phar->buildFromDirectory($sourcePath);

// (Optional) Set stub file — main entry point
// $phar->setStub($phar->createDefaultStub('index.php'));

$phar->compressFiles(Phar::GZ);

// Stop buffering and write
$phar->stopBuffering();

echo "Phar created: $pharFile\n";